Incrustation preventive



.NITE STATES FFTQQ BURNETT M. HENNEY, OF SPRINGFIELD, ILLINOIS.

INQRUSTATION PREVENTIVE.

SPECIFICATION forming part of Letters Patent No. 397,547, dated February 12, 1889.

Application filed May 24:, 1888. Serial No. 274,948. (No specimens.)

To all (Uh 0711 it may concern: times or intervals, using about one pint at it Be it known that], BURNETT M. HENNIEY, a time for a boiler of fifty-horse power. A regcitizen of the llnited States, residing at ular application of this quantity will keep Springfield, in the county of Sangamon and any boiler clean and free of all scale or in- Siate of Illinois, haveiuveutedanew and usecrustations if used once in twenty-four hours. ful Improvement in Steam-Boiler Purgers or By constantly using it once every day the Cleanersa process by means of which the thick hard scale of an old boiler made foul scale or incrustationol the boiler may bedisby long and constant use will become dissolved and drawn out and the heating capacity solved into a fine floating sediment which can 10 of the boiler be kept at a maximum; and I be readily drawn off by means of the blow- 5o hereby declare the same to be a description pipe.

of my invention or process which will enable The liquid is to be put into the watentank others skilled in the management and care of from which the boiler is supplied, or it may steam-boilers to make and use the same. be pumped directlyinto the boiler separately I 5 ll eretofore steam-boilers have been cleaned from the water, there being no danger from or purged by various compounds or processes explosion in its application. The Walnutmore or less imperfect or defective; but this bark alone dissolves the softer part of the process or compound does its work in a thorscale, while the kerosene penetrates to every oughly complete and satisfactory manner, bepart of the boiler-surface and of the water 20 ing both a cleaner and a preservative of the and steam pipes connected therewith, and boiler. loosens and dissolves all into a fine floating The object of my invention is to keep the sediment, as previously stated, leaving all boiler and allsteam and water pipes connected clean and free from scale, as if new iron. therewith perfectly free and clean of all solid Astriking advantage my invention has over 2 5 sediment or incrustations that may form on all other processes now in use is its simplicity the inner surface from the boiling of the waand cheapness, and the thoroughness with ter; to prevent the water from foaming or which it loosens and removes the scale from swelling, and thus economize both fuel and every part of the boiler and of the pipes con- Water; to dissolve and remove the scale from nected therewith; also in its preserving and 0 old boilers, where it has formed and collected benefitting the boiler-iron. from lon and constant usage while the boiler Having thus described my invention, WhatI is in use, and to preserve the metal of which 3 desire to claim and secure by Letters Patent the boiler is made. I attain these objects by is the use of my in veniion at regular or irregu- A steam beilei purger compound composed 35 lar intervals of not more than once each day of kerosene and walnut-bark juice or extract,

the boiler or boilers may be in use. It is a as described and set forth. 5 liquid compound, made of common kerosene- BURNETT M. HENNEY.

oil and walnut-bark juice or extract mixed in lVitnesses: equal quantities. S. A. BULLARD, 40 The composition may be used at certain G. A. Fnosr. 

